.Background_0 {
    background-image: url(../IMG/LAY/PLATTFORM_BK.png);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    background-size: cover;
}

.Background_1 {
    background-image: url(../IMG/LAY/Keys.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.Background_2 {
    background-image: url(../IMG/LAY/Path%20Through%20meadow.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
}